This tutorial is aimed at those who have just started using Linux. Generally when users from the Windows background enter the Linux. Tor is free software for enabling anonymous communication. The name is derived from an acronym for the original software project name "The Onion Router".

Free Hacking Tools To Become Powerful Hacker. Wondering which software is used for hacking? What is the best software for hacking password? We have created a list of useful hacking tools and software that will help you do you job much easier. Ethical hacking and online security involve a lot of efforts.

Many tools are used to test and keep software secure. The same tools can also be used by hackers for exploitation. Becoming a hacker is not easy it requires many skills. You can learn a few hacking tricks from free hacking tutorials online, some really cool hacking books and books on information security .

Biggest list of free hacking tools for you to hack proficiently.

However, Along with all the skills, you need to have best tools to perform hacking, security threat analysis and penetration testing. A hacking tool is a computer program or software which helps a hacker to hack a computer system or a computer program. The existences of hacking tools have made the lives of the hackers much simpler when compared to the times they did not exist.

But it does not mean that if the Hacker is equipped with a good hacking tool, his entire job is smoothly done. The hacker still requires the skills of all the aspects of hacking equally well. Password Cracker Software. A password cracker software, which is often referred to as a password recovery tool, can be used to crack or recover the password either by removing the original password, after bypassing the data encryption or by an outright discovery of the password. In the process of password cracking, a very common methodology used to crack the user password is to repeatedly make guesses for the probable password and perhaps finally hitting on the correct one.

It cannot be denied that whenever we are referring to cyber security, passwords are the most vulnerable security links. On the other hand, if the password is too completed, the user might forget it. Password Cracker software are often used by the hackers to crack the password and access a system to manipulate it. Do not unethically use this software for hacking passwords. In the next section you would be getting familiar with some of the popular Password Cracker tools which are used by hackers for password cracking. Hashcrack is password cracker for GPU(s) and CPU(s) using Open. CL. It can run on NVDIA and AMD devices.

It is a very powerful password cracking tool that is also well documented. It is a free password cracker software which is based on the effective implementation of the rainbow tables. It runs on a number of Operating Systems like Mac OS X, Unix/Linux and Windows Operating System. It is equipped with real- time graphs for analyzing the passwords and is an open source software. Ophcrack has the capability to crack both NTLM hashes as well as LM hashes.

Medusa is one of the best online brute- force, speedy, parallel password crackers which is available on the Internet. It has been designed by the members of the website foofus. It is also widely used in Penetration testing to ensure that the vulnerability of the system can be exposed and appropriate security measures can be taken against hacking. Rainbow Crack as the name suggests, is a cracker for hashes with the Rainbow Tables. It runs on multiple operating systems such as Linux, Windows Vista, Windows XP (Windows Operating Systems). It supports both Graphical User Interface as well as Command line Interface. It's software which is used for password cracking by generating rainbow tables, fuzzing all the parameters.

Wfuzz is a flexible tool for brute forcing Internet- based applications. It supports many features like Multithreading, Header brute forcing, Recursion when discovering directories, Cookies, Proxy Support, hiding results and encoding the URLs to name a few.

Wfuzz is a useful tool for finding unlinked resources like scripts, directories, and servlets as well. Brutus is one of the most flexible and free password crackers which operates remotely.

It is popular also because of its high speed and operates under operating systems such as Windows 2. Windows NT and Windows 9x. Currently, it does not operate under the UNIX operating system.

Brutus was initially designed to check network devices like routers for common as well as default passwords. L0pht. Crack which is now known as L0pht. Crack. 6 is a tool which tests the strength of a password given, as well as to recover lost passwords on Microsoft Windows platform. Thus it is a tool for both password recovery as well as auditing the password. It uses techniques such as Rainbow tables, brute- force, and dictionary to recover passwords.

Fgdump is a powerful cracking tool. In fact, it's much more powerful than pwdump. Fgdump has the capability to handle this problem of hanging by shutting down first.

It later restarts the Antivirus software. It supports multi- threading which is very relevant in the multitasking and multi- user environment. Every password security study has revealed that the biggest security weaknesses are the passwords. THC Hydra is a tool for cracking logins and it is flexible as it supports various protocols. It is very fast and at the same time, new modules can be easily added.

Hydra can run on operating systems like Solaris 1. OSX, Windows, and Linux. John the Ripper is a free software for password cracking which was originally designed for the Unix Operating System. At present, it can run on 1. Operating systems which include 1. UNIX, Win. 32, DOS, and Be.

OS. It has the capability to combine several password crackers into a single package which has made it one of the most popular cracking tools for hackers. It is a network software suite used in 8. Wireless Local Area Networks. It consists of tools such as a packet sniffer, detector, and a WEP. This tool runs on both Windows and Linux Operating systems. It can work with any type of wireless network interface controller, provided the driver is supporting the raw monitoring mode. Cain and Abel, often referred to as Cain, is a tool for recovering the password in the Windows platform.

It has the capability to recover various kinds of passwords using techniques such as cracking the password hashes by using brute- forcing, dictionary attacks, cryptanalysis attacks and packet sniffing in the network. The objective of this security tool is to locate the valid user identities in a Virtual Public Network along with the secret key combinations. Once this is accomplished, this information can be used easily by a hacker to have access to a VPN in an unauthorized manner. Wireless Hacking Tools. Wireless Hacking Tools are those hacking tools which are used to hack into a wireless network which is usually more susceptible to security threats. One must also ensure that the network is completely secured against hacking or other malware.

The list of wireless hacking tools which would be discussed now can be used to do a Penetration Testing for a Wireless Network. This is an intentional attack on a network to detect security vulnerabilities by accessing its data and functionality. It is a software suite specially designed for a wireless network and which operates under both the Windows and the Linux Operating System. Aircrack- ng consists of a packet sniffer, WPA cracker, and analysis tool and a detector for the wireless Local Area Networks (8.

The best part of this software suit is one need not install it to use it. It is a collection of files which can be easily used with a command prompt. There have been many wireless hacking tools exposed in recent past. When a hacker hacks a wireless network, it is supposed to defeat the Wireless network’s security devices. The Wi- Fi networks i.

While hackers are always more than ready to hack especially if there are weaknesses in a computer network, hacking is often a tedious and complicated procedure. Kismet is a wireless detector system which detects possible intrusion to an 8. There is certain plug- in supported by Kismet which enables sniffing media like DECT.

Linux Network Configuration. Linux TCP/IP Network Configuration Files. File. Description/etc/resolv. List DNS servers for internet domain name resolution. Manual page for: /etc/resolv. Lists hosts to be resolved locally (not by DNS). Manual page for: /etc/hosts/etc/nsswitch.

List order of host name search. Typically look at local files, then NIS server, then DNS server. Manual page for: /etc/nsswitch. Red Hat/Fedora/Cent.

OS: /etc/sysconfig/network. Specify network configuration. Static IP, DHCP, NIS, etc. Red Hat/Fedora/Cent. OS: /etc/sysconfig/network- scripts/ifcfg- device.

Specify TCP network information. Ubuntu/Debian: /etc/network/interfaces.

Specify network configuration and devices. Static IP and info, DHCP, etc. If using DHCP client, this will automatically. ISP and loaded into this file as part of the DHCP protocol. If using a static.

IP address, ask the ISP or check another machine on your network. Your. second port is eth. Choose one of three options.

Direct internet connection. Severed Ties Car Club. Manual proxy configuration (specify proxy and port). Automatic proxy configuration (give URL). Assigning an IP address.

Computers may be assigned a static IP address or assigned one dynamically. Handles all interfaces. Configure for Static IP or DHCP client. See format below. Implied if IP addresses are specified. Shut down interfacearp. Enable ARP protocol on this interface.

Allow ARP to detect the addresses of computer hosts attached to the network.- arp. Disable ARP protocol on this interfacepromisc.

Enable promiscuous mode. Receive all packets on the network not just those destined for this interface.- promisc. Disable promiscuous mode. Specify the Maximum Transfer Unit (MTU) of the interface. The MTU is the maximum number of octets the interface is able to handle in a single transaction. Defaults: Ethernet: 1.

SLIP: 2. 96broadcast XXX. XXX. XXX. XXXSet the network broadcast address for this interface. XXX. XXX. XXX. XXXSet the IP network mask for this interface.

Gateway not defined here for DHCP client. Loopback. (1. 27. C 1. 92. 1. 68. XXX. XXX, reserved class B. XXX. XXX and reserved class A 1. XXX. XXX. XXX. For historical reference the network classes are defined as follows. Class A: Defined by the first 8 bits with a range of 0 - 1.

XXX. XXX. XXX. One class A network can define 1. XXX. XXX. One class B network can define 6. XXX. One class B network can define 2. Ip. Tables firewall rules can be used. IP masquerading (NAT) can be used to connect private local. LAN) to the internet or load balance servers.

One can add firewall rules by using iptables (or ipchains). This example uses 2. Fedora Core 3: /lib/modules/2. The configuration will be stored so that it will be utilized. In this case the device must be defined. Use the Red Hat GUI tool /usr/bin/netcfg. ORDefine network parameters in configuration files.

Define new device in file (Red Hat/Fedora) /etc/sysconfig/network- scripts/ifcfg- eth. S. u. s. e 9. 2: /etc/sysconfig/network/ifcfg- eth- id- XX: XX: XX: XX: XX).

BOOTPROTO=static. IPADDR=1. 92. 1. 68. NETMASK=2. 55. 2. GATEWAY=XXX. XXX. XXX. XXX. HOSTNAME=node- name. DOMAIN=name- of- domain.

Special routing information may be specified, if necessary, in the. Red Hat/Fedora): /etc/sysconfig/static- routes(S. XXX. XXX. XXX. 0 netmask 2. XXX. XXX. XXX. XXXORDefine network parameters using Unix command line interface. Define IP address.

XXX. XXX. XXX. XXX netmask 2. XXX. XXX. XXX. 2. If necessary, define route with with the. XXX. XXX. XXX. XXX dev eth. XXX. XXX. XXX. 0 netmask 2. XXX. XXX. XXX. XXX dev eth.

Where XXX. XXX. XXX. XXX is the gateway to the internet as defined. ISP or network operator. The destination host must be reached through one or more IP gateways. The first gateway is the only one which is known by the host system.

First the packet is examined to see if its'. If it is to be sent to a. See command: /etc/sysconfig/network- scripts/ifup- routes eth. Dynamic routes: RIP (Routing Information Protocol) is used to define dynamic routes. Do not resolve host names for faster results.- e.

Print more extensive information about routes.- v. Verbose.- -help. Route command information.

If not specified then print route table information.- host XXX. XXX. XXX. XXXAdd a single computer host identified by the IP address.- net XXX.

XXX. XXX. XXXAdd a network identified by the network address, to the route. XXX. XXX. XXX. XXXSpecify the network gateway. XXX. XXX. XXX. XXXSpecify the network netmask. Of all the routes specified, identify one as the default network route. Two routers/gateways.

Add internet gateway as before: route add default gw 2. Add second private network: route add - net 1. Show which processes are using a particular file/directory: fuser file- name. This command will list the process ID and a descriptor indicating the following. Durrent directory.

Executable. f: a file open for reading. F: a file open for writing. Roo directory. m: Memory Mapped File/Directory.

List processes using a specified TCP/UDP socket: fuser - v - n tcp 8. Kill a process using a specified TCP/UDP socket: fuser - i - k 8.

Any signal can be sent to the process, not just . Older packages such as routed and gated are no longer supported. Don't resolve host names- g: Show multi- cast group membership info- c: Continuous mode - update info every second- v: Verbose- e: Extended information- o: show network timer information. List all connected processes: netstat - nap.

List all processes with a TCP connection: netstat - tlnp. This will list open TCP ports.

TCP. - l: listening ports only. ID. one can also use the command: lsof - i - PShow network statistics: netstat - s. Display routing table info: netstat - rn$ netstat - nr. Kernel IP routing table. Destination Gateway Genmask Flags MSS Window irtt Iface. U 0 0 0 eth. U 0 0 0 eth.

UG 0 0 0 eth. Flags. G: route uses gateway. U: Interface is .

Use Cntl- C to stop ping. One can install traceroute: apt- get install traceroute). IP- address- of- servertraceroute domain- name- of- servermtr. Fedora - Like traceroute. Leave. running to get real time stats. Reports best and worst round trip times.

Unlike nslookup, the host command will use both /etc/hosts as well as DNS. Also see. Testing your DNS (Yo. Linux Tutorial) Note that nslookup does not use the /etc/hosts file. The listener handles the. Matches the name given in the file /etc/servicessocket- type. TCP). dgram: datagram protocols (UDP).

Transport protocol name which matches a name in the file /etc/protocols. Often. nobody, root or a special restricted id for that service. This includes argument 0 (argv. The best source of information is the man page and its many examples. I have no explanation as to why this occurs or how to fix it other.

Instead of telnet, rsh or rlogin, one should use the encrypted connection ssh. If you wish to use rwhod. Allow broadcast capabilities. Edit /etc/init. d/rwhodchange from: daemon rwhodto: daemon rwhod - b.

Set service to start with system boot: chkconfig - -level 3. Start rwhod service: service rwhod start(or: service rwhod restart). Man pages: rwho: who is logged in on local network machines. Practice Passive And Active Voice Verbs. RPC: Remote Procedure Calls with rpcbind (current) / portmapper (older RHEL5- ). Rpcbind or portmapper are required to manage RPC (Remote Procedure Call) requests from services like NFS (file sharing services), NIS (Network Information Services) and SAMBA.

This is logged to /var/log/secure. Advanced PAM: More specific access can be assigned and controlled by.

Rules and modules are stacked to. Can track and force password changes.

This is often done to avoid exceeding the bandwidth when sending traffic to a particular device such as a wireless modem during peak network bursts. The rest of the man pages describe specific uses of the command. Tcng takes input from a script to be parsed and actions delegated to lower level components and to eventual kernel module directives. See discussion below.

Lowest used by default. Report IP addresses.- t. Don't print a timestamp on each dump line. Filter expressions. Descriptionhost host- name. If host has multiple IP's, all will be checked.